Comparison of Quasi-Static Constitutive Equations and Modeling of Flow Curves for Austenitic 304 and Ferritic 430 Stainless Steels |
| B. Sener and M.E. Yurci
Yildiz Technical University, Department of Mechanical Engineering, 34349 Istanbul, Turkey |
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| Four different quasi-static flow curve models were investigated to describe flow curves of austenitic (304) and ferritic (430) stainless steel sheets. Uni-axial tensile tests were carried out and material constants of the models were determined by curve fitting technique. Applicability of these models over the uniform: plastic deformation region was evaluated according to the value of nonlinear regression parameter R2. It was observed, that the predictions made by El-Magd model are in good agreement with the experimental data for both 304 and 430 stainless steel sheets. |
DOI: 10.12693/APhysPolA.131.605 PACS numbers: 81.05.Bx |